Bugfix: Add folder for app components (#300)

Fix bug introduced accidentally by #286.

Author: frankieroberto

app.js

@@ -54,6 +54,7 @@ const appViews = [
   path.join(__dirname, 'lib/prototype-admin/'),
   path.join(__dirname, 'node_modules/nhsuk-frontend/packages/components'),
   path.join(__dirname, 'node_modules/nhsuk-frontend/packages/macros'),
+  path.join(__dirname, 'app/components/'),
 ];
 
 const nunjucksConfig = {